Home / 12,275.30-16,940.34-6,898.70

Finding the Fourth Proportional to 12,275.30, 16,940.34 and 6,898.70

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Solution

The fourth proportional to 12,275.30, 16,940.34 and 6,898.70 is: 9,520.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,275.30 : 16,940.34 = 6,898.70 : x
  2. Step 2: Convert to fraction form
    12,275.30/16,940.34 = 6,898.70/x
  3. Step 3: Cross multiply
    12,275.30x = 16,940.34 × 6,898.70
  4. Step 4: Simplify right side
    12,275.30x = 116,866,323.56
  5. Step 5: Solve for x
    x = 116,866,323.56/12,275.30
  6. Step 6: Final answer
    x = 9,520.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.